Possible improvements:
- Clarify the error messages of CaWE.exe and Cafu.exe that occur when the working directory seems not to be right. Thanks to SoulRider for a clear report of the current messages at http://www.cafu.de/forum/viewtopic.php?p=6308#p6308
- During program init, test with increasing chains of .., ../.., ../../.. etc. if the required resources can be found, and automatically update the working directory if successful.